4)We provide after sales service and technical assistance as per the customers requirement and needs.
1. what is the delivery time? Delivery within 3 working days. 2. Could I get samples? Yes, we have products in stock ,so you can get the samples quickly. 3. Do you have any certificate for the controller? Yes, We have the certification of ISO,CE and ROSH, we could send the certification test of our company to you. 4. Could I visit your factory? Of course, we will send you the invitation to visit our factory at your convenient time. 5. If I have paid,when will you help me to produce? We will start producing immediately after receiving the payment.